my_pmpro_email_headers_admin_emails.php

<?php   // do not copy this line.
/**
 * This recipe will BCC additional emails addresses when an the expiriing or expired email user receives.
 * 
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

/*
Add bcc for checkout emails
*/
function my_pmpro_email_headers_admin_emails($headers, $email)
{		
	//bcc checkout emails
	if($email->template == "membership_expiring" || $email->template == "membership_expired")
	{
		//add bcc
		$headers[] = "Bcc:" . "[email protected],[email protected]";		
	}
 
	return $headers;
}
add_filter("pmpro_email_headers", "my_pmpro_email_headers_admin_emails", 10, 2);